竹地板面层铺设应牢固,粘贴无空鼓,其检验方法是()。
A.观察检查
B.用2m靠尺和楔形塞尺检查
C.脚踩检查
D.检查材质合格证明文件
E.用小锤轻击检查
参考答案:A, C, E
—Would you mind lending me your bike?
—________. [ ]
A. Yes, I would
B. No, thanks
C. Not at all
D. Yes, you can
血氧饱和度